<template>
  <span style="color: #dc1d1d;">{{ time }}</span>
</template>

<script>
export default {
  props: {
    endTime: {
      type: String,
      default: ''
    }
  },
  data() {
    return {
      time: '',
      flag: false
    };
  },
  mounted() {
    const time = setInterval(() => {
      if (this.flag === true) {
        clearInterval(time);
      }
      this.timeDown();
    }, 500);
  },
  methods: {
    timeDown() {
      const endTime = new Date(this.endTime);
      const nowTime = new Date();
      const leftTime = parseInt((endTime.getTime() - nowTime.getTime()) / 1000);
      const d = parseInt(leftTime / (24 * 60 * 60));
      const h = this.formate(parseInt(leftTime / (60 * 60) % 24));
      const m = this.formate(parseInt(leftTime / 60 % 60));
      const s = this.formate(parseInt(leftTime % 60));
      if (leftTime <= 0) {
        this.flag = true;
        this.$emit('time-end');
      }
      this.time = `${d}天${h}小时${m}分${s}秒`;
    },
    formate(time) {
      if (time >= 10) {
        return time;
      } else {
        return `0${time}`;
      }
    }
  }
};
</script>

<style scoped>
</style>
